写作参考范文：

审题要点：
主题：大城市的生活是否会对人们的健康造成破坏。
思路分析：
文章构架可以选择单边倒，倾向一边或中立，城市发展和健康类的很 多素材稍作改动都可以很好地支持论点。
同意：
1.整个自然环境遭到严重破坏，如空气污染，导致人们的健康遭到威 胁；
2.生活节奏快，在大城市生活的人们往往精神压力大，心理不健康； 不同意（让步段)：
城市健身设施完备，很多人也积极参加锻炼，但尽管如此，只要人们 生活的自然环境没有得到改善，生活节奏过快，人们还是很难维持健 康。
In many countries today, big cities seem to be stubbornly appealing to the mass population, along with which there arises the question as for whether living in a city will damage
people's health. For me, the answer is definitely yes.

On one hand, the environment of most major cities, especially those in developing and underdeveloped countries, has been severely destroyed due to the overly quick industrialization. Take air pollution as an example, the speed of vehicles'injecting tail gas and erect chimneys'vomiting forth clouds of smoke is so fast and the volume so considerable that the atmosphere long before has failed to degrade the pollutants. Consequently, haze becomes a new natural hazard in many metropolises in the long run, with the PM2. 5 density in some
reaching several times the national limit.

Apart from the threat posed to the physical health of city dwellers, the ever-accelerated living tempo, tuned with their competitive mind-set, is doomed to do damage to peopleJ s mental health as well. It is not uncommon that blue-collar and white-collar workers as well spend many more hours in workplace than in their home, not to mention enough time squeezed for relaxation and recreation. An extreme and tragic case in point is the soaring number of suicides in big cities.
Nevertheless, it has to be admitted that health facilities in big cities are increasingly available and in full set and not a few people are making efforts to keep fit. In the morning the young and old can be seen jogging around parks and after dinner women gather and dance on squares. Many companies and public institutes also organize activities to encourage their members to do exercise. But despite all the conveniences, few people can maintain their health as long as the air we breathe is still severely contaminated and the workload remains unbearable.

To sum up, theoretically, at least for now and in the near future, it is of faint possibility for the basic living environment to restore its purity and the society to cease to pursue the unsustainable development; therefore, pathetically, the health conditions of most city dwellers will still deteriorate.
词汇拓展：
大城市：big cities/ major cities/ metropolis
保持健康：Keep fit/ keep healthy/ maintain one's health